#include "stdio.h"
#include "head.h"
int main(void){
int a, b, i;
for(i=0;i<5330;i++){}
printf("enter two numbers:");
scanf("%d %d", &a, &b);
printf("add:%d\n", add(a, b));
printf("sub:%d\n", sub(a, b));
printf("mul:%d\n", mul(a, b));
printf("div:%lf\n", div(a, b));
return 0;
}
